Cooling bed



Feb. 16, 1932.

w.' MIKAELSON COOLING BED 2 Sheets-Sheet 1 Filed April 12, 1929 Q m Ninventor,

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Feb. 16, 1932. E. w. MIKAELSON COOLING BED Filed April 12, 1929 2Sheets-Sheet 2 as j y Gnome Patented Feb. 16, 1932 UNITED STATES PATENTOFFICE mm w. MIKAELSON, or EASTON, PENNSYLVANIA, ASSIGNOR TO ramnwELLEN- GINEETB-ING COMPANY, OF EASTON, PENNSYLVANIA, A COMPANY OF PENNSYL-VANIA,

COOLING BED A plication filed April 12,

This invention relates to. cooling beds for rolling mills, andparticularly to mechanism for pushing the hot bars from the deliverytable of the mill on to the cooling bed.

The cooling bed in connection with which the resent invention isdesigned for .use is of t e well known type which comprises a set ofstationary bars, notched at regular intervals, arranged parallel to eachother at one side of the delivery table and a similar set of notchedbars adapted to be intermittently oscillated, working in the spacesbetween the stationary bars and adapted to shift the hot bars depositedon the stationary bars progressively from notch to notch along thelatter and finally to deliver the cooled bars to a suitable receptacle.The cooling bed is usual- 1y provided with transfer, or pusher,mechanism adapted to push the hot bars, coming from the finishing passof the mill, from the delivery table on to the coolingbed. However, inthe present case. the adjacent notches in the stationary and oscillatingbars are not so closely disposed as in the ordinary bed of this type butare spaced from each other so as to provide a series of horizontal workreceiving surfaces alternating with said notches.

The principal object of the present invention is to provide a pushermechanism for this purpose which can be readily adjusted to positionbars of different cross sections at different relative positions on thecooling bed. For example, if the mill is delivering bars of round crosssection, the pusher mechanism is adjusted to have a long stroke so as topush these bars laterally sufficiently far onto the stationary bars ofthe cooling bed to cause round bars are intermittently advanced from oneseries of notches to another, across the bed to the point of discharge,and the flat bars are advanced intermittently from one row of flatsurfaces (intermediate two rows 1929. Serial No. 354,602.

of notches on the stationary bars) to the next succeeding row of alignedflat surfaces.

Referring to the accompanying drawings,

in which one embodiment of the invention is illustrated, by way ofexample Fig. 1 is a plan view of the coolingbed;

Fig. 2 is a sectional view ShOWiIIgJthG improved pusher mechanismadjusted to proper- 1y position flat bars on the cooling bed, and

Fig. 3 is a view similar to Fig. 2, but showing the pusher mechanismadjusted for operation on round bars. The cooling bed shown by thedrawings comprises a set of stationar parallel notched bars and asimilar set 0 movable transfer bars 11 working in the spaces between andat the sides of the stationary bars. The transfer bars 11 are rigidlyconnected by frame members .12 carrying eccentric straps which aremounted on eccentrics 13 fixed to shafts 14. Shafts 14 carry bevel gears15 meshing with gears 16 on a shaft 17 which is driven through spurgears 18by an electric motor 19. The throw of the eccentrics is equal tothe distance between adjacent notches of both the stationary and movablebars, so that a bar positioned in the first notches of the. cooling bedwill be carried in the notches of the movable bars from one alignedseries of sta tionary bar notches to the next series progressively,until the bar is finally delivered in cooled condition to the receptacleat the delivery side of the bed. This general type of cooling bed iswell known in the art.

The hot bars coming from the finishing pass of the mill are delivered torollers 20 in the direction of the arrow A, each of these rollers beingrotated by an electric motor 21, the rollers 20 constituting thedelivery table of the mill. The present invention is particularlyconcerned with mechanism for pushing the bars laterally from rollers 20on to the cooling bed. The particular mechanism illustrated for thispurpose comprises pushers 22 mounted to reciprocate between the rollersin paths parallel to the axes thereof, these pushers projecting above ahorizontal plane tangential to the upper surfaces of the rollers andbeing thereb adapted to push the bars laterally from t e rollers on tothe cooling bed. Pushers 22 are fixed to slides 23 which are mounted infixed guides 24.

Each slide is connected by a link 25 to the upper end of an arm 26 whichis fixed on a rock shaft 27 j ournaled in bearings 28 located below andat one side of the delivery roll table. To one end of rock shaft 27 isfixed an arm 29, and to this arm is pivotally connected one end of alink 30, the other end of said link bein pivoted to a crank 31 driventhrough suitable reduction gearing by an electric motor 32. The pivotalconnection between link and arm 29 may be adjusted vertically by anysuitable means. The mechanism illustrated includes a block 33, to whichlink 30 is pivotally connected, which block is slidably mounted in ways34: formed in arm 29,, and a threaded shaft 35 rotatably mounted in arm29 and engaging a threaded bore in block. 33, which shaft carries on itsupper end a. hand wheel 36. By rotating hand wheel 36 in one directionor the other, block 33 can be moved towards or from the axis of rockshaft 27, to vary the lengths of the arcs through whichthe upper ends ofarms 26 oscillate, and consequently to vary the throw of the pusher 22.

In Fig. 3 block 33 is shown adjusted to the lower limit of its travel inways 34.. Obviously with the block in this position the pusher 22 willbe given a maximum throw, and it will be observed that this throw issuflicient to push the round bars 37 far enough on to the cooling bed sothat they will drop into the first transverse set of notches in thestationary bars 10. In Fig. 2, on the other hand, block 33 is shownadjusted to the upper limit of its travel in ways 34, causing thepushers to have a minimum throw. With such an adjustment flat bars suchas 38 will be positioned on the horizontal surfaces of stationary bars10 at the rear side of the first set of notches- It is desirable ofcourse that the round bars be initially in the first set of notches ofthe stationary bars and that they should rest in notches of the transferbars when being moved to prevent them from rolling out of position onthe bed, and that the Hat bars be at all times positioned horizontallyon the fiat surfaces between the notches of both transfer and stationarybars. The present invention provides a simple mechanism to effect theseresults. The throw of the eccentrics which drive the transfer bars doesnot vary and it is apparent that if the pusher mechanism is adjusted sothat a round bar is properly delivered to the first series of alignednotches it can not fail to be transferred from one series of notches toanother until it passes from the cooling bed. The same holds true withrespect to the flat bars, that is if a flat bar is correctly posi tionedinitially it will be certain to be transferred from one series ofaligned flat surn will be obvious to thOSe skilled in the art thatvarious changes can be made in the described details of constructionwithout altering the essential mode of operation.

Having thus described the invention, what is claimed as new and desiredto be secured by LettersP'atent is:

1. In combination with the delivery table and cooling bed of a rollingmill, said delivery table comprising spaced rollers and said cooling bedcomprising a set ofstationary bars having alternating series ofdifferently formedrest portions to accommodate rolled bars of differingcross-sections and a set of similarly constructed oscillating barsworking in the spaces between said: stationary bars to transfer a rolledbar from one rest portion to the next one of like form; a series ofhorizontal guides disposed between the rollers of said delivery table,pushers mounted to reciprocate in said guides 'm paths substantiallyparallel to the axes of said rollers, a link pivotally connected at. oneend to each of said pushers, a rock shaft having armsrespectivelypivotally connected to the other ends of said links, another arm rigidwith said rock shaft, a block slidably mounted on said last named arm,means for adjusting the position of said block along said arm, a linkpivoted at one end to said block, and means for reciprocating saidlinkwhereby the throw of said pushers may be adjusted to position bars ofdifferent cross-section upon the initial correspondingly formedrestportion of the bars of said bed.

2. A cooling bed and delivery table installation, for use in connectionwith a rolling mill or the like, comprising, in combination, a

delivery table, a plurality of relatively movable sets of worktransferring bars disposed adjacent said table, means for oscillatingcertain of said bars in a fixed orbit for effecting the transfer of saidwork, all of said bars being provided with alternating series ofdifferently shaped work receiving portions, those of one of said seriesbeing shaped for the reception of work of generally round cross-sectionand those of the other of said series being shaped for the reception offlat work, push-ofif mechanism for transferring the work from said tableto said bars, and means for varying the operation of said mechanism atwill to deposit work of such differing shapes upon the initial workreceivin portions of the proper type to receive t e same.

3. A cooling bed and delivery table installation, for use in connectionwith a rolling mill or the like, comprisin in combination, a deliverytable, two relatively movable sets of work receiving bars disposedadjacent said table, means for oscillating certain of said bars in afixed orbit regardless of the kind of work being handled, all of saidbars being provided with alternating series of notches, for thereception of work of generally round cross-section, and flat surfacesfor the reception of flat work, push-01f mechanism for transferring thework from said table to said bars, and means for varying the operationof said mechanism at will to deposit work of the first mentioned type inthe initial notches of the bars of one of said sets and to deposit workof the last mentioned type upon the ini tial flat surfaces of said bars.

4. A cooling bed and delivery table mechanism, for use in connectionwith a rolling mill or the like, comprising, in combination, a deliverytable, a set of stationary bars disposed adjacent said table havingalternating series of diflerently formed work receiving portions toaccommodate rolled articles of differing cross-sections, and a set ofsimilar- 1y constructed oscillating bars adapted to work in the spacesbetween said stationary bars to transfer a rolled article from one workreceiving portion to the next succeeding one of like configuration,mechanism operatively associated with said table and said bars adaptedto push said articles laterally from said delivery table onto said bars,and means for adjusting the extent of movement of said pushingmechanism, whereby articles of different cross-sections may bepositioned upon the initial work receiving portions of the series of theproper type to receive them.

In testimony whereof I hereunto afiix my signature.

ERIK W. MIKAELSON.

